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Wide-Angle
Image distortion when using a wide(r) angle lens
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<blockquote data-quote="Ad B" data-source="post: 547255" data-attributes="member: 37491"><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Hi, </span></span></span></p><p></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">I’m having a “tiny” problem, I don’t know what I now want to do next. </span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">My shortest focal length, which I have now, is the 24 mm of my 24-120 F4 VR on a FX camera.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">I am very satisfied with the performance of this lens, but sometimes the distortion at 24mm is a bit annoying.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">In addition, I am also thinking to buy a more wide angle lens.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">But I also want a more light sensitivity for my"walk-around" lens.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">So a wide angle lens, light sensitivity "f 2.8" and with less distortion.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">And a “walk-around” thing, also light sensitivity "f 2.8" and less distortion.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">My candidates for the wide angle Tokina 16-28 F2.8, for my walk-around lens theTamron 24-70 F2.8 VC lens.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">And Yes ...I know ... distortion is easy to correct in editing programs (automatically).</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">But if there is something "not or little", also "nothing or little" has to be corrected ...</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Now you can read and study on various places on the Internet lens tests, where they also test data on distortion ...</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">However, I read all different results there...</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">For example:</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">At "Photozone.de" the two walk-around lenses have on 24 mm and the wideangle lens on 16 mm respectively Nikon: -3.55% barrel; Tamron: 3.8% barrel and Tokina: 2.44% barrel distortion.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">But when I go to "DXO" to compare these lenses, taking a look in the tab "Measurements" and in "Distortion", I see for the Nikon and Tamron 0.9% distortion at 24 mm for the Tokina at 16 mm 0.8% distortion. </span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">At "Digitalpicture" numbers are not displayed ...</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">At "SLRGear" they have at the FF test for the Nikon up to 1.25%, for the Tamron 1% distortion. The Tokina has not been tested.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">All sites have different test data.</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">How should I now, as a simple civilian, make a good decision reading this different data?</span></span></span></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Who knows who is right here?? Which data is the most correct?</span></span></span></p><p></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Ad B</span></span></span></p></blockquote><p></p>
[QUOTE="Ad B, post: 547255, member: 37491"] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Hi, [/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]I’m having a “tiny” problem, I don’t know what I now want to do next. [/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]My shortest focal length, which I have now, is the 24 mm of my 24-120 F4 VR on a FX camera.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]I am very satisfied with the performance of this lens, but sometimes the distortion at 24mm is a bit annoying.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]In addition, I am also thinking to buy a more wide angle lens.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]But I also want a more light sensitivity for my"walk-around" lens.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]So a wide angle lens, light sensitivity "f 2.8" and with less distortion.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]And a “walk-around” thing, also light sensitivity "f 2.8" and less distortion.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]My candidates for the wide angle Tokina 16-28 F2.8, for my walk-around lens theTamron 24-70 F2.8 VC lens.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]And Yes ...I know ... distortion is easy to correct in editing programs (automatically).[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]But if there is something "not or little", also "nothing or little" has to be corrected ...[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Now you can read and study on various places on the Internet lens tests, where they also test data on distortion ...[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]However, I read all different results there...[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]For example:[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]At "Photozone.de" the two walk-around lenses have on 24 mm and the wideangle lens on 16 mm respectively Nikon: -3.55% barrel; Tamron: 3.8% barrel and Tokina: 2.44% barrel distortion.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]But when I go to "DXO" to compare these lenses, taking a look in the tab "Measurements" and in "Distortion", I see for the Nikon and Tamron 0.9% distortion at 24 mm for the Tokina at 16 mm 0.8% distortion. [/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]At "Digitalpicture" numbers are not displayed ...[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]At "SLRGear" they have at the FF test for the Nikon up to 1.25%, for the Tamron 1% distortion. The Tokina has not been tested.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]All sites have different test data.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]How should I now, as a simple civilian, make a good decision reading this different data?[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Who knows who is right here?? Which data is the most correct?[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Ad B[/COLOR][/SIZE][/FONT] [/QUOTE]
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Image distortion when using a wide(r) angle lens
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